Stripping mechanism for automatic hosiery driers



June 13, 1933. H. F. WANAMAKER- 1,914,315

STRIPPING MECHANISM FOR AUTOMATIC HOSIERY DRIERS Filed Feb. l5, 1932 2Sheets-SheelI l STRIPPING MEGHANISM FOR AUTOMATIC HOSIERY DRIERS FiledFeb. l5, 1932 2 Sheets-Shea?I Patented dune 13, 1933 HARRY F.

f., SCHWARTZ, TION 0F PENNSYLVANA 'renale NANAMAKER, OF PHLADELPHIA,PENNSYLVNA, ASSGNOR T0 PROCTOR NCOREORATED, OF PHLADELPHIA,

PENNSYLVANIA, A CORPORA- STRPPING MECHANSM FOR. AUTOMATC HOSIERY DRIERSApplication filed February 15, 1932. Serial No. 593,073.

This invention relates to machines for removing stockings from forms,such as that disclosed in U. S. Letters Patent No. 1,126,619, datedJanuary 26, 1915.

1n machines of this type, a form with a stocking thereon is placed ina'substantially horizontal position with the foot portion thereofdisposed between the relatively movable jaws of two pairs of grippers,one cooperating pair being adapted to grip the heel portion of thestocking while the other cooperating pair is arranged to grip the footportion of the stocking. The cooperating pairs of jaws are arranged tobe simultaneously closed to grip the stocking therebetween, after whichthe stocking form is moved relative to the aws in a substantiallyhorizontal plane to withdraw the form from the stocking while thestocking is held between the jaws of the grippers, the grippers beingsubsequently opened to permit the stocking to fall onto a suitable tableor other support.

1n the course of development of these machines the grippers have beenelongated in a direction of the length of the foot portion of the formto distribute the pressure of the grippers over a greater area of thestocking carried by the form, in order to avoid damage to the stockingas the form is being withdrawn therefrom in the manner disclosed in theabove-mentioned patent.

1n the` present case the pair of grippers that is adapted to grip theheel portion of the stocking is relatively smaller than the other pairof grippers which is arranged to grip the foot portion of the stocking.

Normally the jaws of the grippers, and particularly the grippingsurfaces thereof, were composed of non-corrosive metal. With the linergrades of hosiery, metal, contacting with the stocking fabric, tends toinjure the delicate fabric.

To overcome'tliis objection the gripping surfaces of the jaws wereprovided with a relatively soft cushioning material such as rubber,leather, or other non-metallic substance. Nhile this substitution.attained the result for which it was intended it introduced anotherdifculty, which it is the object of this invention to overcome, that is,the fabric of the stocking has a tendency to adhere to the gripping jawsafter the jaws have been opened to release the stocking. In order toremove the stocking immediately from the jaws of the gripper, formingthe subject of the present invention, has been introduced and combinedwith the grippers in a manner fully disclosed hereinafter, referencebeing had to the accompanying drawings, of which:

Fig. 1 is a plan view of the gripper arranged to grip the foot portionof the stocking, with the stripper of the present invention appliedthereto;

Fig. 2 is a front elevation of the mechanism shown in Fig. 1;

Fig. 3 is a sectional elevation taken on the line 3-8, Fig. 1 with thejaws in a closed or gripping position;

Fig. l is a view similar to Fig. 3 with the jaws shown in the openingposition; and

Fig. 5 is a detached plan view of the stripper.

As disclosed in the above-mentioned patent, and as shown in the presentdrawings, the grippers are carried by a non-rotatable rod 1 and areadapted to be operated by relatively rotatable rod 2 arrangedsubstantially parallel to the supporting rod 1 and to be rotated withrespect thereto by mechanism formino' no part of the present invention.

The gripper comprises a sleeve 3, which is rotatably mounted on therod 1. The sleeve 3 is provided with depending lugs Ll, L1, from whichextend arms 5, 5. r1`he arms 5, 5 are integrally connected at theirouter ends by a suitable head 6 in which is arranged one of theelongated gripping elements 7.

Pivoted on a pin 8, passing through the two lugs il, il, is one end of alink 9, the opposite end of which is pivoted on a pin 10 passing throughlugs 11, 11 which form part of an operating lever 1Q. The lever 12 issplined or otherwise secured against relative rotation to the operatingshaft 2, which in the present instance is of a square crosssection, asillustrated in Figs. 1, 3 and 4.

Rotatably mounted on the rod 1 adjacent the hub 3 is a similar hub 13having upstripping mechanism, 5

wardly projecting lugs 14, 14 from which extend integral arms 15, 15that are integrally connected at their outer ends by a head 16. The head16 is provided with a gripping element 17 that is arranged to cooperatewith the gripping element 7 of the lower jaw structure to grip astocking form m with the stocking m1 thereon, in the manner illustratedin Fig. 3.

Pivoted on a pin 18 passing through the lugs 14` 14 is one end of a link19, the opposite end of which is pivoted on a pin 20 carried by lugs 21,21 forming part of the operating lever 12.

Rotation of the shaft 2 from the position shown in Figs. 1, 2 and 3 tothat shown in Fig. 4 will cause the jaws of the gripper to be swung fromthe position shown in Fig, 3 to that shown in Fig. 4, wherein thegripping surfaces 7a and 17a of the gripping elements 7 and 17respectively are moved in opposite directions to release the stockingail from the said gripping surfaces.

The stocking tends to adhere to the gripping surface of one of the jawsand most frequently to the gripping surface 7 a of the lower jaw and forthe purpose of releasingor stripping the stocking from the lowergripping surface 7a a stripping element 25 is provided.

ln the preferred form of the invention, the stripper 25 comprises akplate 26 which s ubstantially covei's the head 6 of the lower jaw kandis provided with an aperture 27,

through which the gripping element 7 projects when in gripping contactwith a stocking ail on a form w.

The gripper 25 normally occupies an inopei'ative position below the.plane of the gripping surface 7a, as shown in Fig. 3, and is arrangedto be moved to an operative position above the plane of the grippingsurface 7a, as shown in Fig. 4, for lifting the stocking from saidgripping surface. 0

The plate 26 of the stripper 25 is provided with a rearwardly extendingportion 28 having downwardly extending lugs 29 and 30 which extendaround the opposite sides of the spaced lugs 4, 4, in which the link 5of the lower jaw is pivoted, the pivot pin 8 for the said link 5 passingthrough the lugs 29 and 30 ofthe stripper and pivotally attaching thesaid stripper to the said lower jaw.

The lug 30 is provided with a rearwardly C extending arm 31 which isadapted to be engaged by one end of the pin 10 extending beyond one ofthe lugs 11 of the actuating lever 12 when the said lever is rocked tomove the jaws from the open position shown in F ig. 4 to the closedposition shown in Fig. 3.

Engagement of the arm 31 by the pin 10 of the lever 12 'swings thestripper 25 about its pivot 8, moving the said stripper to itsinoperative position below the plane of the gripping surface 7 a priorto the closing of the jaws and the contacting of the gripping surfaces 7and 17 a with the stocking :al on a form subsequently inserted betweenthe jaws.

The stripper 25 is adapted to be moved from its inoperative positionshown in Fig. 3 to its operative position shown in Fig. 4 by anysuitable resilient means, such as a spring 32 confined between the lowerside of the plate 26 and the upper side of one of the arms 5, or abridge element 33 extending across the space between the arms 5, 5 ofthe lower jaw for supporting the lower end of the spring 32 Movement ofthe stripper 25 in its operative position is limited by a lug or lip 34extending inwardly from a downwardly projecting flange or apron 35disposed at the outer edge of the plate 26 of the stripper 25, the lug34 being arranged to engage the lower surface of the head 6 of the lowerjaw.

lith the above noted arrangement of elements the stripper 25 functionssimultaneously with the opening of the jaws to release the stocking` thepin 10 moving away from the arm 3l of the stripper during the initial jawopening movement of the lever 12 and permitting the spring 32 to movethe stripper 25 to its operative position substantially at the same timeas the gripping surface 17 a moves away from the gripping surface 7 aand from the stocking gripped between the two said gripping surfaces.

I claim:

1. In a machine for removing stockings from forms, the combination of apair of cooperating jaws for gripping a stocking on a form. and meansfor stripping the stocking from the grippers subsequent to the removalof the form from the stocking.

2. In a machine for removing stockings from forms, the combination of apair of horizontally disposed relatively movable jaws for gripping astocking on a form therebetween, and means cooperating with the lowerjaw of said pair for stripping the stocking therefrom subsequent to theremoval of the form from the stocking.

3. In a machine for removing stockings from forms, the combination of apair of horizontally disposed relatively movable jaws for gripping astocking on a form therebetween, and means cooperating with the lowerjaw of said pair for stripping the stocking therefrom subsequent to theremoval of the form from the stocking, said stripper comprising anelement disposed adjacent the gripping surface of said lower jaw andmovable to a plane above said gripping surface to strip the stockingtherefrom.

4. 1n a machine for removing stockings from forms, the combination of Vapair of horizontally disposed relatively movable jaws for gripping astocking on a form therebetween, and means cooperating with the lowerjaw of said pair for stripping the stocking therefrom subsequent to theremoval of the form from the stocking, said stripper comprising anelement surrounding the gripping surface of said lower aw and movable toa plane above said surface to strip the stocking therefrom.

5. ln a machine for removing stockings from forms, the combination of apair of horizontally disposed relatively movable jaws for gripping astocking on a forni therebetween, means cooperating with the lower jawof said pair for stripping the stocking therefrom subsequent to theremoval of the form from the stocking, said stripper com- '1' prising anelement surrounding the gripping surface of said lower jaw and normallydisposedL in a plane below that of said surface, and means for raisingsaid element to a plane above that of said surface to strip the stockingtherefrom.

6. In a machine for removing stockings from forms, the Combination of apair of horizontally disposed relatively movable jaws for gripping astocking on a form there- 3 between, means cooperating with the lowerjaw of said pair for stripping the stocking therefrom subsequentto theremoval of the form from the stocking, said stripper comprising anelement completely surrounding the gripping surface of said lower jawand normally disposed in a plane below that of said surface, and meansfor raising said element to a plane above that of said surface to stripthe stocking therefrom.

7. ln a machine for removing stockings from forms. the combination of apair of horizontal disposed relatively movable jaws for gripping astocking on a form therebetween, means cooperating with the lower jaw ofsaid pair for stripping the stocking therefrom subsequent to the removalof the form from the stocking, said stripper coinprising a platenormally disposed below the plane of the gripping surface of said jawand through which said gripping surface projects. and means for raisingthe plate to aplane above that of said surface to strip the stockingtherefrom.

8. ln a machine for removing stockings from forms, the combination of apair of horizontally disposed relatively movable jaws for gripping astocking on a form therebetween,

means cooperatingwith the lower jaw of said pair for stripping thestocking therefrom subsequent to the removal of the form from thestocking, said stripper comprising a plate normally disposed below theplane of the gripping surface of said jaw and provided with. an openingthrough which said grippingsurface projects, means for raising the plateto a plane above that of said surface to-strip the stocking therefrom,and means for returning said plate to its normal position prior to theclosing of the jaws into gripping contact with a stocking on a formsubsequently positioned between the jaws.

9. ln a machine for removing stockings from forms, the combination of a.pair of horizontally disposed relatively movable jaws for gripping astocking on a forni therebetween, means cooperating with the lower jawof said pair for stripping the stocking therefrom subsequent to theremoval of the form from the stocking, said stripper comprising a platenormally disposed below the plane of the gripping surface of said andprovided with an opening through which said gripping surface projects,resilient means for raising the plate to a plane above that of saidsurface to strip the stocking therefrom and means for returning saidplate to its normal position prior to the closing of the jaws intogripping contact with a stocking on a form subsequently positionedbetween the jaws.

l0. ln a machine for removing stocking from forms, the combination of apair of jaws adapted to grip a stocking on a form between cooperatinggripping surfaces of the said jaws respectively, means for pivotallysupporting said jaws, actuating means for opening and closing said jaws,a stripper cooperating with one of said jaws to strip the stocking fromthe gripping surface thereof, and means for moving the stripper tooperative and inoperative positions respectively during the operation ofsaid jaws by said actuating means.

l1. In a machine for removing stockings from forms, the combination of apair of jaws adapted to grip a stocking on a forni between cooperatinggripping surfaces of the said jaws respectively, means for pivotallysupporting said aws, actuating means for opening and closing said jaws,a stripper cooperating with one of said aws to strip the stocking fromthe gripping surface thereof, means for moving the stripper to anoperative position relative to said surface to strip the stockingtherefrom, and means operable by said jaw actuating means to move thestripper to an inoperative position relative to said surface prior tothe gripping of a stocking and its forni subsequently inserted betweensaid jaws.

12. In a machine for removing stockings from forms, the combination of apair of jaws adapted to grip a stocking on a form between cooperatinggripping surfaces ofthesaidl aws respectively, means for pivotallysupporting said jaws, actuating means for opening and closing said jaws,a stripper cooperating with one of said jaws to strip the stocking fromthe gripping surface thereof, resilient means for moving the stripper toan operative position relative to said surface to strip the stockingtherefrom simultaneous with the opening of the jaws by said actuatingmeans, and means operable by said jaw actuating rit position relative tosaid surface prior to the gripping of a stocking and its formsubsequently inserted between said jaws.

13. In a machine for removing stockings from forms, the combination of apair of jaws adapted to grip a stocking on a form between cooperatinggripping surfaces of the said jaws respectively, means for pivotallysupporting said jaws, actuating means for opening and closing said jaws,a stripper pivotally mounted on one of said jaws and cooperating withthe gripping surface thereof to strip the stocking therefrom, resilientmeans for moving the stripper to an operative position re1- ative tosaid surface simultaneous with the opening of said jaws by saidactuating means, an arm on said stripper, and a projection on saidactuating means adapted to engage said arm to move said stripper to aninoperative position relative to said surface prior to the gripping of astocking and its form subse quently inserted between said jaws.

14. In a machine for removing stockings from forms, the combination of apair of jaws adapted to grip a stocking on a form between cooperatinggripping surfaces of the said jaws respectively, means for pivotallysupporting said jaws, actuating means for opening and closing said jaws,a stripper pivotally mounted ou one of said jaws and cooperating withthe gripping surface thereof to strip the stocking therefrom, resilientmeans for moving the stripper to an operative position relative to saidsurface simultaneous with the opening of said jaws b v said actuatingmeans, means for limiting the movement of said stripper in its operativeposition relative to the gripping surface with which it cooperates, anarm on said stripper, and a projection on said actuating means adaptedto engage said arm to move said stripper t0 an inoperative positionrelative to said surface prior to the gripping of a stocking and itsform subsequently inserted between said jaws.

HARRY F. WTANAMAKER.

